Israel launches air strikes near Damascus

ISRAELI strikes hit a military target outside Damascus, the Jewish state's second reported raid on Syria in three days, with residents saying the attack felt like an earthquake and turned the sky red.

A senior Israeli source said the aerial assault took out Iranian weapons destined for the Lebanese militant group Hezbollah, which is allied to the Syrian regime.

And a diplomatic source in Beirut told AFP three sites were targeted, including a military facility, a nearby weapons depot and an anti-aircraft unit in Sabura, west of Syria's capital.

The official SANA news agency said Israel had targeted the military research centre at Jamraya in the Eastern Ghouta region, without giving details on casualties or damage.

"This new Israeli aggression is a clear attempt to alleviate the pressure on the armed terrorist groups after our army beat them back in several regions and after the army's victories on the road to recovering security and stability in Syria," said SANA.

The Israeli source, who spoke on condition of anonymity, said the target of the attack "was Iranian missiles which were destined for Hezbollah".

He also confirmed the Jewish state was behind an attack overnight Thursday, which sources told AFP targeted a weapons storage facility at Damascus airport.

On Sunday morning, an Israeli army spokeswoman said two batteries of the Iron Dome missile defence system had been moved to the north of the country.

"This attack proves the direct involvement of the Israeli occupation in the conspiracy against Syria and its links with terrorist groups in the aggression supported by Western countries and some Gulf countries," SANA said of Sunday's pre-dawn strike.

Residents of the upscale Damascus neighbourhood of Dumar, six kilometres away, said the raids caused the ground to shudder and turned the black night sky red.

"It was like an earthquake, the sky was yellow and red," said 72-year-old Najwa.

Video footage of the strikes uploaded to YouTube showed a series of missiles lighting up clouds.

A fire caused by the raids could be seen burning and then an enormous explosion erupts, producing an orange fireball that momentarily fills the entire screen.

The powerful explosion sent up towering clouds of smoke illuminated by embers of debris.

If confirmed, the attack would be Israel's second this week against targets inside Syria and the second time it has targeted the Jamraya facility, after a January 30 raid that Israeli officials implicitly acknowledged.

Israel has frequently warned that it would act to stop the transfer of advanced weapons systems or chemical weapons to Lebanon's Hezbollah with which it fought a devastating war in 2006.

Hezbollah and Iran, the regional arch-foes of Israel, have steadfastly backed the regime of Syrian President Bashar al-Assad since the uprising against it erupted in March 2011.

US President Barack Obama, speaking after the first reported attack this week, said Israel was justified in protecting itself.

"The Israelis justifiably have to guard against the transfer of advanced weaponry to terrorist organisations like Hezbollah," he said, without commenting directly on the strike.